FLORISTIC COMPOSITION AND STRUCTURE OF A PEAT SWAMP FOREST IN THE CONSERVATION AREA OF THE PT NATIONAL SAGO PRIMA, SELAT PANJANG, RIAU, INDONESIA
Yusi Rosalina, Kuswata Kartawinata, Nisyawati Nisyawati, Erwin Nurdin, Jatna Supriatna
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Abstract
We studied the floristic composition and structure of the logged-over peat swamp forest in the PT National Sago Prima of PT Sampoerna Agro Tbk. group for future management of the conservation area that has been set aside by the company. In January - February 2012, 25 quadrats of 20 m x 20 m were laid out systematically along a transect, thus covering a sampled area of 1-ha. The results showed that the study site was a regenerating and developing secondary peat swamp forests having high plant species richness. The total number of species recorded was 73 species of 38 families, consisting of 49 species (30 families) of trees (DBH? 10 cm ), 42 species (24 families) of saplings (H > 1.5 m and DBH < 10 cm), and 41 species (27 families) of seedlings and undergrowth. Tree density was 550 individuals/ha, and total tree basal area was 18.32 m2. The Shannon-Wiener’s Diversity Index for trees was high (3.05) Two tree species with the highest Importance Values (IV) were Pandanus atrocarpus (IV= 45.86 %) and Blumeodendron subrotundifolium (22.46 %). The tree families with the highest IV were Pandanaceae (45.86), Myrtaceae (40.37), and Dipterocarpaceae (39.20). Forest structure dominated by trees with a diameter below 20 cm amounting to 408 trees/ha (74.05%). and D and E strata with height of less than 20 m, and density of 431 trees/ha (78.36%). Jaccard Similarity index among species, showed strong association between Pandanus atrocarpus and Blumeodendron subrotundifolium and based on this association combined with high IVs, the two parameters of species characterized the forest, hence the forest could be designated as the Pandanus atrocarpus--Blumeodendron subrotundifolium association. Primary forest species with high economic values were still present in the forest. Eleven species can be included in the IUCN Red List, of which Shorea rugosa is in the category of Critically Endangered), Shorea tesymanniana Endangered and Gonystylus bancanus vulnerable, hence they should be protected.
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ANDERSON, J. A. R. 1963. The flora of the peat swamp forests of Sarawak and Brunei, including a catalogue of all recorded species of flowering plants, ferns and fern allies. Gardens’ Bulletin Singapore 20: 131 228.
ANDERSON, J. A. R. 1976. Observation on the ecology of five peat swamps in Sumatra and Kalimantan. In: Proceedings of a Seminar on Peat and Podsolic Soils and Their Potential for Agriculture in lndonesia, Tugu, October 1976. Soils Research lnstitute, Bogor. Pp. 45–55.
ASTHON, P. S. 1982. Dipterocarpaceae. Flora Malesiana I 9(2): 237–552.
BERLAGE, H. P. 1949. Regenval in Indonesië. Verhandelingen No. 37, Meteorologische en Geophysiche Dienst Koninklijk Magnetisch en Meteorologisch Observatorium, Batavia.
COX, W. G. 1967. Laboratory manual of general ecology.WM.C. Brown Company Publisher,USA.Pp. 165.
ISTOMO. 2002. Kandungan fosfor dan kalium serta penyebarannya pada tanah dan tumbuhan hutan rawa gambut (studi kasus di Wilayah Bagian Kesatuan Pemangku Hutan Bagan, Kabupaten Rokan Hilir, Riau. Program Pasca Sarjana, Institut Pertanian Bogor, Bogor. (Disertasi; In Indonesian).
IUCN 2012. IUCN Red list of threatened species. Version 2012.2. (www.iucnredlist.org). (Accessed on 07 December 2012).
KARTAWINATA, K. 2005. Six decades of natural vegetation studies in Indonesia. In: SOEMODIHARDJO, S. & SASTRAPRADJA, S. D. (Eds.), Six decades of science and scientists in Indonesia, Naturindo, Bogor. Pp. 95–140.
KEEL, S., GENTRY, A. H. & SPINZI, L. 1993. Using vegetation analysis to facilitate the selection of conservation sites in Eastern Paraguay. Conservation Biology 7(1):66–75.
MIRMANTO, E., SUHARDJONO, SUSIARTI, S. 1993. Struktur dan komposisi pohon hutan gambut di Kalimantan Barat. In: Prosiding Seminar Hasil Litbang SDH 14 Juni 1993, Bogor. 273–285.
MOGEA, P. & MANSUR, M. 1999. Plant diversity of peat swamp forest in Riau Province, Sumatra. In: IWAKUMA, T., INOUE, T., KOHYAMA, T., OSAKI, M., SIMBOLON, H., TACHIBANA, H., TAKAHASHI, H., TANAKA, N. & YABE, K. Eds.). Proceedings of the International Symposium on Tropical Peat Land, 22-23 November 1999. Bogor. Pp. 191-203.
MUELLER-DOMBOIS, D. & ELLENBERG, H. 1974. Aims and method of vegetation ecology. John Wiley & Son, New York. Pp. 547.
PARTOMIHARDJO, T, SADILI, A. & PURWANTO, Y. 2011. Preliminary studies on structure and floristic diversity of two permanent plots in peat swamp forest Biosphere Reserve Giam Siak Kecil and Bulkit Batu, Bengkalis, Riau. In: PURWANTO, Y. & MIZUNO, K. (Eds.), Proceedings of the international workshop on sustainable management of bioresources in tropical peat swamp forest, 19 July 2011, Cibinong Science Center, UNESCO Jakarta Office & The Indonesian MAB National Committee-LIPI, Jakarta. Pp. 47–57.
PURWANINGSIH. 2011. Regeneration analysis of plant species in peat swamp forest Suaq Belimbing, Gunung Leuser National Park, South Aceh. In: PURWANTO, Y. & MIZUNO, K. (Eds.), Proceedings of the international workshop on sustainable management of bioresources in tropical peat swamp forest, 19 July 2011, Cibinong Science Center, UNESCO Jakarta Office & The Indonesian MAB National Committee-LIPI, Jakarta. Pp. 112–118.
PURWANINGSIH & YUSUF, R. 1999. Vegetation analysis of Suaq Belimbing peat swamp forest, Gunung Leuser National Park-South Aceh. In: IWAKUMA, T., INOUE, T., KOHYAMA, T., OSAKI, M., SIMBOLON, H., TACHIBANA, H., TAKAHASHI, H., TANAKA, N. & YABE, K. (Eds.). 2000. Proceedings of the international symposium tropical peat land, 22-23 November 1999. Bogor. Pp. 275–287.
PT NATINAL SAGO PRIMA. 2010. Rencana kerja usaha pemanfaatan hasil hutan bukan kayu hutan tanaman industri (sagu) jangka waktu 10 (sepuluh) tahun periode tahun 2010 s/d 2019. Keputusan Menteri Kehutanan No. SK.353/Menhutt-II/2008 Tanggal 24 September 2008 jo No. SK.380/Menhut-II/2009 Tanggal 25 Juni 2009. Kabupaten Kepulauan Meranti, Provinsi Riau.
RICHARD, P. W. 1996. The tropical rain forest: an nd ecological study (2 ed.). Cambridge University Press, London. Pp. 575.
RISWAN, S. 1982. Ecological studies on primary, secondary and experimentally cleared mixed Dipterocarp forest and Kerangas forest in East Kalimantan, Indonesia. University of Aberdeen. (Dissertation). ROSALINA,Y., KARTAWINATA, K., NISYAWATI, NURDIN, E. & SUPRIATNA, J. 2013. Carbon stock in the peat swamp forest conservation area of PT National Sago Prima, Kepulauan Meranti, Riau. Buletin Kebun Raya 6 (2): 115–130. (In Indonesian).
RUIZ-JAEN, M. C. & POTVIN, C. 2010. Tree diversity explains variation in ecosystem function in a Neotropical forest in Panama. Biotropica 42(6): 638–646.
SAHARJO, B. H., & NURHAYATI, D. 2007. Regeneration in peat. Jurnal Tanah dan Lingkungan 9(1): 27–36.
SAMBAS, E. N., SUSIARTI, S. & SUHARDJONO.1994. Struktur dan komposisi hutan gambut di Ka-bupaten Sanggau, Kalimantan Barat. In: Prosiding. Seminar hasil Litbang SDH, 4 April 1994. Bogor. Pp. 344–350.
SAMBAS, E. N., SUSIARTI, S. & SUHARDJONO. 1994. Struktur dan komposisi pohon hutan gambut primer dan sekunder di Kabupaten Ketapang, Kalimantan Barat. In: Prosiding seminar hasil Litbang SDH, 4 April 1994. Bogor. Pp. 351–358.
SCHMIDT, F. H. & FERGUSON, J. H. A. 1951. Rainfall types based on wet and dry period ratios for Indonesia. Verhandelingen No. 42, Djawatan Meteorologi dan Geofisika, Djakarta.
SIMBOLON, H. & MIRMANTO, E. 2000. Checklist of plant species in the peat swamp forest of Central Kalimantan, Indonesia. 1999. In: IWAKUMA T, INOUE, T., KOHYAMA, T., OSAKI, M., SIMBOLON, H., TACHIBANA, H., TAKAHASHI, H., TANAKA, N. & YABE, K (Eds.). Proceedings of the international symposium tropical peat land, 22-23 November 1999. Bogor. Pp. 179–190.
SIREGAR, M. 2002. Pengaruh topografi mikro terhadap vegetasi hutan gambut di Bengkalis, Riau. Berita Biologi 6(3): 441–453.
SIREGAR, M. & SAMBAS, E. N. 2000. Floristic composition of peat swamp forest in Mensemat Sambas, West Kalimantan. In: IWAKUMA T, INOUE, T., KOHYAMA, T., OSAKI, M., SIMBOLON, H., TACHIBANA, H., TAKAHASHI, H., TANAKA, N. & YABE, K (Eds.). Proceedings of the International Symposium Tropical Peat land, 22-23 November 1999. Bogor. Pp. 153–164.
WAHYUNTO, S., RITUNG, SUPARTO & SUBAGJO, H. 2005. Sebaran gambut dan kandungan karbon di Sumatera dan Kalimantan (buku 3). Wetlands International-Indonesia Programme. Bogor. Pp. 254.
WHITTAKER, R. H. 1972. Evolution and measurement of species diversity. Taxon 21: 213-251.
WIBOWO, H. 1995. Studi struktur tegakan dan komposisi jenis pohon pada hutan rawa gambut PT. National Timber and Forest Product I, Riau. Jurusan Manajemen Hutan, Fakultas Kehutanan, Institut Pertanian Bogor. Bogor. Pp. 70. (Skripsi).
WHITMORE, T. C. 1986. Tropical rain forests of the Far East. Oxford University Press, Oxford. Pp. 352.
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